运行时生命周期：使用者知道(因而依赖于)运行时状态或服务提供者的准备情况，这就表明存在紧密耦合行为。

Runtime life cycle: the consumer's awareness of (and subsequent dependence on) the runtime state or readiness of a service provider is indicative of tightly coupled behavior.

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它是怎样产生的：目前在世界上有超过23000种的核武器，其中有8000种已在使用中，还有2000种正处于高度戒备状态，随时准备发射。

How it could happen: There are currently more than 23, 000 nuclear weapons in the world, of which 8, 000 are currently operational and 2, 000 are on high alert and ready to launch on short notice.

youdao

现在我们已经准备好集群环境了，接下来可以运行并行程序了，并且可以根据需要添加或删除新节点，并使用Ganglia来监视节点的状态。

Now that the cluster is ready, you can run parallel programs, add or remove new nodes based on need, and monitor the status with Ganglia.

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